The magnetic field in a plane electromagnetic wave is given by, $B_{y}=2 \times 10^{-7} \sin \left(\pi \times 10^{3} x+3 \pi \times 10^{11} t\right) \;T$ Calculate the wavelength.

A wave is propagating in a medium of electric dielectric constant $2$ and relative magnetic permeability $50$. The wave impedance of such a medium is.....$ \Omega$

The electric field of a plane polarized electromagnetic wave in free space at time $t = 0$ is given by an expression

$\vec E(x,y) = 10\hat j\, cos[(6x + 8z)]$

The magnetic field $\vec B (x,z, t)$ is given by : ($c$ is the velocity of light)

In an electromagnetic wave, the electric and magnetising fields are $100\,V\,{m^{ - 1}}$ and $0.265\,A\,{m^{ - 1}}$. The maximum energy flow is.......$W/{m^2}$

If $E$ and $B$ denote electric and magnetic fields respectively, which of the following is dimensionless

An electromagnetic wave of frequency $5\, GHz ,$ is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are $2 .$ Its velocity in this medium is $\times 10^{7}\, m / s$